एपीए उद्धरण

Gupta,A.S. (1999). Calculus of variations with applications. Prentice-Hall of India.

शिकागो स्टाइल उद्धरण

Gupta,A.S. Calculus of Variations with Applications. New Delhi: Prentice-Hall of India, 1999.

एमएलए उद्धरण

Gupta,A.S. Calculus of Variations with Applications. Prentice-Hall of India, 1999.